Internal combustion engine



FIG. 1 is a front, left side perspectie view of a first embodiment of an internal combustion engine in accordance with my new design;

FIG. 2 is a front, right side perspective view of the first embodiment;

FIG. 3 is a rear, left side perspective view of the first embodiment;

FIG. 4 is a rear, right side perspective view of the first embodiment;

FIG. 5 is a front elevational view of the first embodiment;

FIG. 6 is a left side elevational view of the first embodiment;

FIG. 7 is a top view of the first embodiment;

FIG. 8 is a right side elevational view of the first embodiment;

FIG. 9 is a rear elevational view of the first embodiment;

FIG. 10 is a bottom view of the first embodiment;

FIG. 11 is a front, left side perspective view of a second embodiment of the internal combustion engine;

FIG. 12 is a front, right side perspective view of the second embodiment;

FIG. 13 is a rear, left side perspective view of the second embodiment;

FIG. 14 is a rear, right side perspective view of the second embodiment;

FIG. 15 is a front elevational view of the second embodiment;

FIG. 16 is a left side elevational view of the second embodiment;

FIG. 17 is a top view of the second embodiment;

FIG. 18 is a right side elevational view of the second embodiment;

FIG. 19 is a rear elevational view of the second embodiment;

FIG. 20 is a bottom view of the second embodiment;

FIG. 21 is a front, left side perspective view of a third embodiment of the internal combustion engine;

FIG. 22 is a front, right side perspective view of the third embodiment;

FIG. 23 is a rear, left side perspective view of the third embodiment;

FIG. 24 is a rear, right side perspective view of the third embodiment;

FIG. 25 is a front elevational view of the third embodiment;

FIG. 26 is a left side elevational view of the third embodiment;

FIG. 27 is a top view of the third embodiment;

FIG. 28 is a right side elevational view of the third embodiment;

FIG. 29 is a rear elevational view of the third embodiment;

FIG. 30 is a bottom view of the third embodiment;

FIG. 31 is a front, left side perspective view of a fourth embodiment of the internal combustion engine;

FIG. 32 is a front, right side perspective view of the fourth embodiment;

FIG. 33 is a rear, left side perspective view of the fourth embodiment;

FIG. 34 is a rear, right side perspective view of the fourth embodiment;

FIG. 35 is a front elevational view of the fourth embodiment;

FIG. 36 is a left side elevational view of the fourth embodiment;

FIG. 37 is a top view of the fourth embodiment;

FIG. 38 is a right side elevational view of the fourth embodiment;

FIG. 39 is a rear elevational view of the fourth embodiment;

FIG. 40 is a bottom view of the fourth embodiment;

FIG. 41 is a front, left side perspective view of a fifth embodiment of the internal combustion engine;

FIG. 42 is a front, right side perspective view of the fifth embodiment;

FIG. 43 is a rear, left side perspective view of the fifth embodiment;

FIG. 44 is a rear, right side perspective view of the fifth embodiment;

FIG. 45 is a front elevational view of the fifth embodiment;

FIG. 46 is a left side elevational view of the fifth embodiment;

FIG. 47 is a top view of the fifth embodiment;

FIG. 48 is a right side elevational view of the fifth embodiment;

FIG. 49 is a rear elevational view of the fifth embodiment; and,

FIG. 50 is a bottom view of the fifth embodiment.

The broken lines in the figures are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for an internal combustion engine, as shown and described. 